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题目内容 (请给出正确答案)
单选题
Which of the following does the writer explain?
A

Neurotoxins.

B

Microscopic organisms.

C

Predators.

D

Fish walks.


参考答案

参考解析
解析:
细节题。第三段最后一句指出“This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing “fish walks” (fish trying to leave the water)…”,该句括号里的内容是对“fish walks”的解释,由此可知“fish walks”的原因是被这些微生物麻痹了神经,从而呼吸困难。因此选D。
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